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https://issues.apache.org/jira/browse/STORM-2018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15630944#comment-15630944
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Jungtaek Lim commented on STORM-2018:
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I also merged into 1.0.x branch, target for 1.0.3.
> Simplify Threading Model of the Supervisor
> ------------------------------------------
>
> Key: STORM-2018
> URL: https://issues.apache.org/jira/browse/STORM-2018
> Project: Apache Storm
> Issue Type: New Feature
> Components: storm-core
> Affects Versions: 1.0.0, 2.0.0
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Fix For: 2.0.0, 1.1.0, 1.0.3
>
> Attachments: Slot.dot, Slot.svg
>
> Time Spent: 45h 20m
> Remaining Estimate: 0h
>
> We have been trying to roll out CGROUP enforcement and right now are running
> into a number of race conditions in the supervisor. When using CGROUPS the
> timing of some operations are different and are exposing issues that we would
> not see without this.
> In order to make progress with testing/deploying CGROUP and RAS we are going
> to try and refactor the supervisor to have a simpler threading model, but
> likely with more threads. We will base the code off of the java code
> currently in master, and may replace that in the 2.0 release, but plan on
> having it be a part of 1.x too, if it truly is more stable.
> I will try to keep this JIRA up to date with what we are doing and the
> architecture to keep the community informed. We need to move quickly to meet
> some of our company goals but will not just shove this in. We welcome any
> feedback on the design and code before it goes into the community.
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